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Finding the Fourth Proportional to 495.71, 743.67 and 149.07

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Solution

The fourth proportional to 495.71, 743.67 and 149.07 is: 223.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.71 : 743.67 = 149.07 : x
  2. Step 2: Convert to fraction form
    495.71/743.67 = 149.07/x
  3. Step 3: Cross multiply
    495.71x = 743.67 × 149.07
  4. Step 4: Simplify right side
    495.71x = 110,858.14
  5. Step 5: Solve for x
    x = 110,858.14/495.71
  6. Step 6: Final answer
    x = 223.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.